<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>Some Page</title>
    <style>
        footer {
            text-align: center;
            line-height: 12pt;
            font-size: 9pt;
        }
    </style>
</head>
<body>
    <p style="color: green;">
        This text is green, but
        <span style="color: red;">this text is red.</span>
        Back to green again, but...
    </p>
    <p>
        ... now the green is over, and we're back to the default color for this page.
    </p>
    <footer>
        Copyright 2017 Acme Products, Inc.
    </footer>
</body>
</html>